Roberts Gorden HE20ST Manual Do Utilizador

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B
LACKHEAT
®
 HE I
NSTALLATION
 O
PERATION
 
AND
 S
ERVICE
 M
ANUAL
60 of 73
15.3.1 Electrode
Figure 34: Burner Cup Position
15.3.2 Burner Head/Injector Jet
When the cover is removed completely, the burner 
assembly is exposed. Unscrew the burner cup. Remove 
brass injector jet (orifice). Replace in reverse sequence.
15.3.3 Solenoid Valve/Governor
Remove burner head. Unscrew two screws securing the 
solenoid/governor body. Withdraw the electrical 
connector and remove the flexible gas line connector. The 
solenoid/governor and fittings can now be withdrawn from 
the compartment. To ensure IP55 protection, replace the 
gasket on the gas valve inlet flange (P/N 03200100).
The solenoid(s) can be removed from the body by 
unscrewing central screw. Replace in reverse sequence.
15.3.4 Automatic Flame Control Unit
Remove black ignition lead. Withdraw the 10 point edge 
connector. Unscrew two screws from the cover. Replace if 
faulty. Refit in reverse sequence.
15.3.5 Pressure Switch
Disconnect the two silicone tubes. Remove electrical 
plug. Remove one screw which secures the pressure 
switch to the burner. Remove pressure switch.
Replace pressure switch, if faulty, and refit in reverse 
sequence ensuring that the rubber tubes are reconnected 
to the switch correctly.
15.3.6 Neons
Remove the two push on connectors and unscrew the 
nut. Replace in reverse sequence.
15.4 Maintenance Checklist
Installation Code and Annual Inspections: 
All installation and service of ROBERTS GORDON
®
 
equipment must be performed by a contractor qualified in 
the installation and service of equipment sold and 
supplied by Roberts-Gordon LLC and conform to all 
requirements set forth in the ROBERTS GORDON
®
 
manuals and all applicable governmental authorities 
pertaining to the installation, service and operation of the 
equipment. 
To help facilitate optimum performance and safety, 
Roberts-Gordon LLC recommends that a qualified 
contractor conduct, at a minimum, annual inspections of 
your ROBERTS GORDON
®
 equipment and perform 
service where necessary, using only replacement parts 
sold and supplied by Roberts-Gordon LLC.
Burner Cup
(center horizontally)
Electrode
Assembly
16 mm
Air Plate
Jet
The Vicinity of the Heater
Do not store or use flammable objects, liquids or vapours near the heater. 
Immediately remove these items if they are present.
Vehicles and Other 
Objects
Maintain the clearances to combustibles. 
Do not hang anything from, or place anything on, the heater.
Make sure nothing is lodged underneath the reflector, in between the tubes or in the 
decorative or protective grilles (included with select models). 
Immediately remove objects in violation of the clearances to combustibles. 
Reflector
Support reflector with reflector hanger and support strap.
Reflector must not touch tube.
Make sure there is no dirt, sagging, cracking or distortion.
Do not operate if there is sagging, cracking or distortion.
Make sure reflectors are correctly overlapped.
Clean outside surface with a damp cloth.